Rolex Explorer II
1971 spin-off of the Explorer adding a fixed 24-hour bezel and independent 24-hour hand so cave and polar explorers could tell day from night.
5 references
“Differs” marks a spec with different recorded values. — means not recorded.
| Spec | 1655 "Freccione" | 16550 | 16570 | 216570 | 226570 |
|---|---|---|---|---|---|
| Case size Differs | 39 mm | 40 mm | 40 mm | 42 mm | 42 mm |
| Case | Stainless steel | Stainless steel | Stainless steel | Stainless steel | Stainless steel |
| Bezel Differs | steel fixed 24-hour engraved | fixed 24-hour engraved | fixed 24-hour engraved | fixed 24-hour engraved | fixed 24-hour engraved |
| Crystal Differs | acrylic | sapphire | sapphire | sapphire | sapphire |
| Water resistance | 100 m | 100 m | 100 m | 100 m | 100 m |
| Caliber Differs | 1575 | 3085 | 3185 | 3187 | 3285 |
| Movement maker | Rolex | Rolex | Rolex | Rolex | Rolex |
| Movement type | Automatic | Automatic | Automatic | Automatic | Automatic |
| Jewels Differs | Not recorded | 27 | 31 | 31 | 28 |
| Frequency | 28800 vph | 28800 vph | 28800 vph | 28800 vph | 28800 vph |
| Power reserve | Not recorded | Not recorded | Not recorded | Not recorded | 70 h |
| Complications Differs | gmt | gmt, date | gmt, date | gmt, date | gmt, date |
| Dial Differs | black | black or white | black or white ("Polar") | black or white ("Polar") | white ("Polar") or black |
| Hands Differs | arrow-tip 24-hour hand, orange | orange | orange | orange | orange |
| Bracelet | Not recorded | Not recorded | Oyster steel | Oyster steel | Oyster steel |
| Produced Differs | 1971–1985 | 1985–1989 | 1989–2011 | 2011–2021 | 2021 |